Words formed from any letters in zetas, plus optional blank

The value of the blank, or of an existing letter already on the game board, is shown at the start of each line.

6 letters

o - azotes  

r - ersatz  

5 letters

a - zetas  

j - tajes  

u - saute  

4 letters

j - jest   jets  

q - qats  

x - axes   sext  

z - zeta   zest  

3 letters

j - taj   jet  

q - qat